September 2018

Puppy Linux: Frugal Install on USB with Syslinux

Puppy Linux is a special Linux version meant for old computers and for totally run in ram. Further than for bein installed on aged computers Puppy Linux is great to be used as portable OS installed in an usb flash drive and differently from a live distro it can also save the data if it is installed with a persistence file. For me is really very comfortable always having with me a Linux OS ready...

Linux: convert mdadm raid0 in raid5

Reading the wiki Linux Raid doesn't seem possible convert a raid0 in raid5 without formatting and without losing the data but instead we can do this quickly and with a single command, for example we will convert a raid0 with two disks in a raid5 with three disks: mdadm --grow /dev/md0 --level=5 --raid-devices=3 --add /dev/sdc --backup-file=/tmp/grow_md0.bak